From db7942b6292306abd42d3340fdb57d9d80fcffd9 Mon Sep 17 00:00:00 2001
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Mon, 8 May 2017 10:50:09 +0200
Subject: [PATCH] dma-buf: Improve a size determination in dma_buf_attach()
Git-commit: db7942b6292306abd42d3340fdb57d9d80fcffd9
Patch-mainline: v4.13-rc1
References: bsc#794563

Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/dma-buf/dma-buf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index 53257c166f4d..9887d72cf804 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -558,7 +558,7 @@ struct dma_buf_attachment *dma_buf_attach(struct dma_buf *dmabuf,
 	if (WARN_ON(!dmabuf || !dev))
 		return ERR_PTR(-EINVAL);
 
-	attach = kzalloc(sizeof(struct dma_buf_attachment), GFP_KERNEL);
+	attach = kzalloc(sizeof(*attach), GFP_KERNEL);
 	if (attach == NULL)
 		return ERR_PTR(-ENOMEM);
 
-- 
2.20.1